Hypoventilation may be caused by an uneven distribution of inspired air (as in bronchitis), obesity, neuromuscular or skeletal disease affecting the thorax, decreased response of the respiratory center to carbon dioxide, or a reduced amount of functional lung tissue, as in atelectasis, emphysema, and pleural effusion.
Seborrheic Keratosis Causes Wart Like Skin Growths. Seborrheic keratosis causes wart like skin growths to appear on just about every body thatâs over age 40. Although they resemble skin cancer, these keratosis tumors are benign.
Wart facts. 1  Warts are small, self-limited tumors caused by one of over 100 types of human papillomaviruses (HPV). 2  The clinical forms of warts include common warts, flat warts, plantar warts, periungual warts, filiform warts, and genital warts. 3  Warts typically disappear on their own with time, but it may take years.